1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0eea7273b0b2683ad87ca7375b0917470b47bb8b6c8714faa3b72cac4134fc. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/576aae19-b4c5-4a6e-9436-13ac5315d311.json and https://artists.proofprofile.net/proofs/artist/576aae19-b4c5-4a6e-9436-13ac5315d311.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b281362dcbd20baac8b64bf80e854b944bd9f4e9c8a5b52cc1b8366443e640a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBW80810516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb12058942eac4c1db032f8ebd2edcb68cc5d00f8cd061d783c95c45cc37c53c. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:36:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBW80810517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b306b0ca6d223d4acea423e4982096fc7b9f4687547ef199973e6833c75645e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBW80810519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720c827bef0059de4ac538a146ecbf14efaf32ce894405f4bbf68f416dee6102. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBW80810520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7abac0f45459c3ca424493802af3dae46e818ea900f5c58eb5acffb02a0606. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:53:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBW80810521.
Throwing Cars At People On Coke With Thor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22856f69a02e18faad4fc22e417f0cf2bcd7bc5a5f45c4b4a055e35e1c073db. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBW80810526.